Bv2.1 7.2.3: Check that subtitle <StartTime> exists and is 0.

[libdcp.git] / src / mono_picture_frame.cc

diff --git a/src/mono_picture_frame.cc b/src/mono_picture_frame.cc
index 143d447caf92d630ba082505aebe84d73f028baa..7420193e47ec0f0701e48ac8d7207df5113b0c51 100644 (file)
--- a/src/mono_picture_frame.cc
+++ b/src/mono_picture_frame.cc
@@ -1,20 +1,34 @@
 /*
     Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of libdcp.
+
+    libdcp is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    libdcp is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
+    along with libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
+
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
 */
 
 /** @file  src/mono_picture_frame.cc
@@ -26,14 +40,14 @@
 #include "util.h"
 #include "rgb_xyz.h"
 #include "colour_conversion.h"
-#include "KM_fileio.h"
-#include "AS_DCP.h"
 #include "compose.hpp"
 #include "j2k.h"
-#include <openjpeg.h>
+#include "crypto_context.h"
+#include <asdcp/KM_fileio.h>
+#include <asdcp/AS_DCP.h>
 
 using std::string;
-using boost::shared_ptr;
+using std::shared_ptr;
 using boost::optional;
 using namespace dcp;
 
@@ -43,69 +57,64 @@ using namespace dcp;
 MonoPictureFrame::MonoPictureFrame (boost::filesystem::path path)
 {
        boost::uintmax_t const size = boost::filesystem::file_size (path);
-       _buffer = new ASDCP::JP2K::FrameBuffer (size);
+       _buffer.reset(new ASDCP::JP2K::FrameBuffer(size));
        FILE* f = fopen_boost (path, "rb");
        if (!f) {
                boost::throw_exception (FileError ("could not open JPEG2000 file", path, errno));
        }
 
-       fread (j2k_data(), 1, size, f);
+       size_t n = fread (data(), 1, size, f);
+       if (n != size) {
+               boost::throw_exception (FileError ("could not read from JPEG2000 file", path, errno));
+       }
+
        fclose (f);
 
        _buffer->Size (size);
 }
 
 /** Make a picture frame from a 2D (monoscopic) asset.
- *  @param path Path to the asset's MXF file.
+ *  @param reader Reader for the asset's MXF file.
  *  @param n Frame within the asset, not taking EntryPoint into account.
  *  @param c Context for decryption, or 0.
  */
-MonoPictureFrame::MonoPictureFrame (boost::filesystem::path path, int n, ASDCP::AESDecContext* c)
+MonoPictureFrame::MonoPictureFrame (ASDCP::JP2K::MXFReader* reader, int n, shared_ptr<DecryptionContext> c)
 {
-       ASDCP::JP2K::MXFReader reader;
-       Kumu::Result_t r = reader.OpenRead (path.string().c_str());
-       if (ASDCP_FAILURE (r)) {
-               boost::throw_exception (FileError ("could not open MXF file for reading", path, r));
-       }
-
        /* XXX: unfortunate guesswork on this buffer size */
-       _buffer = new ASDCP::JP2K::FrameBuffer (4 * Kumu::Megabyte);
+       _buffer.reset(new ASDCP::JP2K::FrameBuffer(4 * Kumu::Megabyte));
+
+       ASDCP::Result_t const r = reader->ReadFrame (n, *_buffer, c->context(), c->hmac());
 
-       if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer, c))) {
-               boost::throw_exception (DCPReadError (String::compose ("could not read video frame %1 of %2", n, path.string())));
+       if (ASDCP_FAILURE (r)) {
+               boost::throw_exception (ReadError (String::compose ("could not read video frame %1 (%2)", n, static_cast<int>(r))));
        }
 }
 
 MonoPictureFrame::MonoPictureFrame (uint8_t const * data, int size)
 {
-       _buffer = new ASDCP::JP2K::FrameBuffer (size);
+       _buffer.reset(new ASDCP::JP2K::FrameBuffer(size));
        _buffer->Size (size);
        memcpy (_buffer->Data(), data, size);
 }
 
-/** MonoPictureFrame destructor */
-MonoPictureFrame::~MonoPictureFrame ()
-{
-       delete _buffer;
-}
 
 /** @return Pointer to JPEG2000 data */
 uint8_t const *
-MonoPictureFrame::j2k_data () const
+MonoPictureFrame::data () const
 {
        return _buffer->RoData ();
 }
 
 /** @return Pointer to JPEG2000 data */
 uint8_t *
-MonoPictureFrame::j2k_data ()
+MonoPictureFrame::data ()
 {
        return _buffer->Data ();
 }
 
 /** @return Size of JPEG2000 data in bytes */
 int
-MonoPictureFrame::j2k_size () const
+MonoPictureFrame::size () const
 {
        return _buffer->Size ();
 }